Bohemond, Duke of Apulia
According to Robert of Torigni, in Normandy, he was born in 1182 and made Duke of Apulia. Bohemond was Joanna and William's only child, and upon his birth would have been met with great excitement as the heir to the throne of Sicily. Unfortunately, he most likely died in infancy, and certainly did not live long enough to feature in any other annals, if he existed at all.
- Robert of Torigni, The Gesta Normannorum Ducum of William of Jumièges, Orderic Vitalis and Robert of Torigni. Edited and translated by Elisabeth M. C. Van Houts. Clarendon Press Oxford: 1995.
- Matthew, Donald. The Norman Kingdom of Sicily. Cambridge University Press: 1992.
- Bohemond of Sicily (Medieval Lands)